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Finding the Fourth Proportional to 10,015.52, 15,024.08 and 3,090

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Solution

The fourth proportional to 10,015.52, 15,024.08 and 3,090 is: 4,635.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,015.52 : 15,024.08 = 3,090 : x
  2. Step 2: Convert to fraction form
    10,015.52/15,024.08 = 3,090/x
  3. Step 3: Cross multiply
    10,015.52x = 15,024.08 × 3,090
  4. Step 4: Simplify right side
    10,015.52x = 46,424,407.20
  5. Step 5: Solve for x
    x = 46,424,407.20/10,015.52
  6. Step 6: Final answer
    x = 4,635.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.